Li Ion replacement batteries questions

[gostovp]

I want to get some backup/extra batteries for my AceBeam and Sofirn headlamps. I’m wanting to get an 18650 for the Sofirn and a 21700 for the AceBeam. I was going to order from 18650batterystore.com (https://www.18650batterystore.com/) but Im confused as to which ones to order ? There are different continuous discharge Amp rates, and button top vs non button top, protected vs unprotected…. I’m confused
I’ve attached pics of my existing batteries for reference

 

[nksmfamjp]

18650 Battery | Rechargeable Li-Ion Cells | Battery Junction

Browse our catalog of 18650 batteries by your favorite brands, including Samsung, LG, Panasonic, and more! Available with free shipping on orders over $50*

www.batteryjunction.com

Go here. Read their info section at the top. They don’t sell junk and they give info needed to purchase.

Nitecore brand is the easy button.

 

[cornfedkiller]

I'm fairly certain that sofrin lights have built-in protection from over/under charging, so you should be just fine using unprotected cells, but I suggest buying them from reputable brands/sellers.

The internet tells me that they will take either flat or button-top, and It looks like the battery that came with it is a button top..

These are two of my favorite batteries.. the first one is a button top. The second is flat.

18650 Button Top Battery 3500mAh High Drain Rechargeable Li-ion 3.7V Orbtronic-Panasonic-Sanyo-Battery case included

18650 Button Top battery (Unprotected) High Drain 3500mAh Li-ion - Orbtronic - Free battery holder included.

www.orbtronic.com

NCR18650GA Sanyo-Panasonic-Japan 18650 3500mAh Li-ion High Drain Rechargeable Battery Flat top-Free Battery Case Included

NCR18650GA Authentic Sanyo-Panasonic JAPAN 18650 3500mAh High Drain Li-ion battery, Order Now! We ship the same business day. Orbtronic USA

www.orbtronic.com

I don't know anything about Acebeam lights or 21700 batteries, and it looks like orbtronic only carries one button-top, but it looks like it would work!

21700 Battery 5000mAh PROTECTED Li-ion Button Top Rechargeable 3.7V Best For High Performance Flashlights-Safety Battery Case Included

21700 Battery Button top Protected 5000mAh 3.7V Li-ion Rechargeable 10A Cell

www.orbtronic.com

 

[gostovp]

I'm fairly certain that sofrin lights have built-in protection from over/under charging, so you should be just fine using unprotected cells, but I suggest buying them from reputable brands/sellers.

The internet tells me that they will take either flat or button-top, and It looks like the battery that came with it is a button top..

These are two of my favorite batteries.. the first one is a button top. The second is flat.

18650 Button Top Battery 3500mAh High Drain Rechargeable Li-ion 3.7V Orbtronic-Panasonic-Sanyo-Battery case included

18650 Button Top battery (Unprotected) High Drain 3500mAh Li-ion - Orbtronic - Free battery holder included.

www.orbtronic.com

NCR18650GA Sanyo-Panasonic-Japan 18650 3500mAh Li-ion High Drain Rechargeable Battery Flat top-Free Battery Case Included

NCR18650GA Authentic Sanyo-Panasonic JAPAN 18650 3500mAh High Drain Li-ion battery, Order Now! We ship the same business day. Orbtronic USA

www.orbtronic.com

I don't know anything about Acebeam lights or 21700 batteries, and it looks like orbtronic only carries one button-top, but it looks like it would work!

21700 Battery 5000mAh PROTECTED Li-ion Button Top Rechargeable 3.7V Best For High Performance Flashlights-Safety Battery Case Included

21700 Battery Button top Protected 5000mAh 3.7V Li-ion Rechargeable 10A Cell

www.orbtronic.com

thanks!
I’m assuming orbtronic is good to go when ordering from online? ( no issues with ordering or shipping?)

 

[cornfedkiller]

thanks!
I’m assuming orbtronic is good to go when ordering from online? ( no issues with ordering or shipping?)

Sorry I just saw this reply. Yep, no issues with them!

 

[horpensky]

Sofirn sells batteries directly on their site, and they seem to be pretty competitively priced. Not sure about their quality, but would expect them to fit their lamps properly.